US3113734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for comminuting fibrous material
Assignee: Individual
•
Filing: 1960-12-13
•
Granted: 1963-12-10
•
Expires: 1980-12-13
Abstract
No abstract record available.
Inventors
- 👤 Neidl Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:20
CPC Classifications
F; F04; F04D; F04D11/00; F04D11/005; D; D21; D21D; D21D1/00; D21D1/20; D21D1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
APPARATUS FOR COMMINUTING FIBROUS MATERIAL SUSPENDED IN A LIQUID VEHICLE, COMPRISING A HOUSING HAVING A PUMP CHAMBER PROVIDED WITH AN AXIS, INLET MEANS FOR ADMITTING A SUSPENSION OF SAID MATERIAL INTO SAID CHAMBER AND OUTLET MEANS SPIRALLY WIDENING OUTWARDLY FROM SAID AXIS FOR REMOVING SAID SUSPENSION FROM SAID CHAMBER; AN IMPELLER DISC HAVING A SERRATED PERIPHERY EXTENDING WITHIN SAID CHAMBER IN INCLINED INTERSECTING RELATIONSHIP TO SAID AXIS, SAID CHAMBER HAVING AN ANNULARLY GROOVED WALL PORTION CENTERED ON SAID AXIS AND COMPLEMENTARILY RECEIVING THE TEETH OF THE SERRATED PERIPHERY OF SAID DISC; AND MEANS FOR ROTATING SAID DISC ABOUT SAID AXIS WITH THE PERIPHERY OF SAID DISC SWEEPING A SURFACE OF REVOLUTION CENTERED ON SAID AXIS AND CLOSELY JUXTAPOSED WITH SAID WALL PORTION OF SAID CHAMBER WHEREBY SAID DISC DISPLACES SAID SUSPENSION FROM INLET MEANS THROUGH SAID OUTLET MEANS AND SPIRALLY THEREALONG.
Claim 2
Dependent Claim
141 words
APPARATUS FOR COMMINUTING FIBROUS MATERIAL SUSPENDED IN A LIQUID VEHICLE, COMPRISING A HOUSING HAVING A PUMP CHAMBER PROVIDED WITH AN AXIS, INLET MEANS FOR ADMITTING A SUSPENSION OF SAID MATERIAL INTO SAID CHAMBER AND OUTLET MEANS SPIRALLY WIDENING OUTWARDLY FROM SAID AXIS FOR REMOVING SAID SUSPENSION FROM SAID CHAMBER; AN IMPELLER DISC HAVING A SERRATED PERIPHERY EXTENDING WITHIN SAID CHAMBER IN INCLINED INTERSECTING RELATIONSHIP TO SAID AXIS, SAID CHAMBER HAVING AN ANNULARLY GROOVED WALL PORTION CENTERED ON SAID AXIS AND COMPLEMENTARILY RECEIVING THE TEETH OF THE SERRATED PERIPHERY OF SAID DISC; AND MEANS FOR ROTATING SAID DISC ABOUT SAID AXIS WITH THE PERIPHERY OF SAID DISC SWEEPING A SURFACE OF REVOLUTION CENTERED ON SAID AXIS AND CLOSELY JUXTAPOSED WITH SAID WALL PORTION OF SAID CHAMBER WHEREBY SAID DISC DISPLACES SAID SUSPENSION FROM INLET MEANS THROUGH SAID OUTLET MEANS AND SPIRALLY THEREALONG.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |